Where to start?

Sᴀʀᴀʜ • 💜♐️sun💜♎️moon💜♒️rising💜
I got diagnosed with PCOS at 17
Now i'm 22, married and wanting to get pregnant, i got a implanon put in at 17, that is still there... and needs to be taken out. My doctor is not so good, and didn't give me information just said i'm doomed to be fat and have pain. Where do I start? In getting ahead of my PCOS? I keep reading things about diets and vitamins but what kind of things should come first?